Nintendo's activity title was the retail chain's fastest-selling game ever, as it launches new in-store ratings

The Currys retail chain, consisting of Currys, PC World and Dixons brands, has revealed that it sold a copy of Wii Fit every four seconds across the release weekend, making it the chain's fastest-selling game ever.

The news comes alongside the announcement that the group is also planning to implement its own game classification scheme to try to better inform shoppers as to the suitability of its products for family entertainment.

PC and console titles will be tested by a selection of families, while some products will also be labelled as suitable for customers over the age of 60.

"The notion that videogames are played by teenagers tucked away in their bedrooms is past its sell-by date," said Amanda Clift, Currys' head of brand. "Videogaming is now a mainstream form of family entertainment and we've seen a huge surge in the number of non-core gamers purchasing consoles and games.

"This new scheme will allow us to rate a game based on the collective feedback of a large number of families so our customers can quickly and easily identify which games are going to provide the best form of family entertainment."

The move follows the release of the Byron Review last month, which recommended stronger measures to highlight and encourage recognition of videogames ratings.

The company also released a top ten chart of its best-selling 'family-friendly' titles, as follows:

1. Wii Fit (Wii)

2. Singstar (PS3)

3. Gran Turismo 5: Prologue (PS3)

4. Buzz Hollywood (PS2)

5. Big Brain Academy (Wii)

6. Mario Kart (Wii)

7. Brain Training (DS)

8. Pro Evolution Soccer 2008 (Wii)

9. Sun Crossword (DS)

10. Mario and Sonic at the Olympic Games (DS)

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